Multi-segment imager

• US 8,976,080 B2
• Filed: 08/29/2012
• Issued: 03/10/2015
• Est. Priority Date: 12/06/2005
• Status: Active Grant

• Current Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Original Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Inventors: Richards, Martin J., Damberg, Gerwin, Ward, Gregory John, Schindler, Kenneth
• Primary Examiner(s): XAVIER, ANTONIO J
• Application Number:
  US13/597,522
• Publication Number:
  US 20120320342A1
• Time in Patent Office: 923 Days
• Field of Search: None
• US Class Current: 345/1.3
• CPC Class Codes: G03B 21/13 Projectors for producing special effects at the edges of picture, e.g. blurring
• CPC Class Codes: G03B 37/04 with cameras or projectors providing touching or overlapping fields of view
• CPC Class Codes: G09G 3/002 to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

Several embodiments of projection systems are disclosed that comprise a plurality of controllable emitters, each said emitter providing light for a light path; a plurality of first optical elements, each said first optical element receiving light from one of said emitters; a controllable modulator receiving light from said plurality of first optical elements; a plurality of conduits, each said conduit disposed over a portion of said controllable modulator; a plurality of second optical elements, each of said second optical elements receiving light from at least one of said plurality of conduits, and a controller for sending control signals to said controllable emitters and said controllable modulator. The illumination from the emitters may form a plurality of overlapping areas of illumination upon a projection screen where the image is intended to be formed.

Claims

1. A projection system comprising:

a plurality of controllable emitters, said controllable emitters capable of being locally dimmed according to control signals, each said emitter providing light for a light path;

a plurality of first optical elements, each said first optical element receiving light from one of said emitters;

one or more controllable modulators receiving light from said plurality of first optical elements;

a plurality of conduits, each said conduit disposed over a portion of said one or more controllable modulators;

a plurality of second optical elements, each of said second optical elements receiving light from at least one of said plurality of conduits;

a controller, said controller sending control signals to said controllable emitters and said one or more controllable modulators, said control signals applied according to image data to be rendered upon a screen by projected light from said plurality of second optical elements; and

further wherein said one or more controllable modulators are disposed to transmit light to affect a plurality of overlapping areas of illumination upon a projection screen; and

wherein said one or more controllable modulators are organized into groups, and further wherein a group of said groups of controllable modulators provides illumination for one of said second optical elements; and

wherein illumination from the group of said groups of controllable modulators generates a projected image with imaging gaps.

2. The projection system of claim 1 wherein said controllable emitters comprises one of a group, said group comprising:

LED, OLED and quantum dots.

3. The projection system of claim 2 wherein said first optical elements comprise one or more of a group, said group comprising:

lens, collimating lens, condenser and polarizing re-capture elements.

4. The projection system of claim 3 wherein said one or more controllable modulators comprise one or more of a group, the group comprising:

LCD panel, DLP (Digital Light Processing) integrated circuit, and micro-electro-mechanical device (MEM).

5. The projector system of claim 1 wherein said one or more controllable modulators are disposed to transmit light fanning inward to illuminate said projection screen.

6. The projection system of claim 1 wherein said one or more controllable modulators are disposed to transmit light fanning outward to illuminate said projection screen.

7. The projector system of claim 1 wherein each of said plurality of overlapping areas of illumination comprise one of a group, said group comprising:

substantially circular areas of illumination and substantially rectangular areas of illumination.

8. The projection system of claim 7 wherein said plurality of overlapping areas of illumination comprising one of a group, said group comprising:

substantially rectangular array pattern of areas of illumination and substantially hexagonal array pattern of areas of illumination.

9. The projection system of claim 1 wherein said projection system further comprises:

a second set of one or more controllable modulators, said second set of one or more controllable modulators disposed to receive light from said one or more controllable modulators, said second set of one or more controllable modulator receiving control signals from said controller; and

further wherein each of said conduit is disposed over a portion of said second set of one or more controllable modulators.

10. The projection system of claim 1 wherein said one or more controllable modulators comprise an array of controllable modulators and further wherein each said controllable modulator provides illumination for one of said second optical elements.

11. The projection system of claim 1 wherein said one or more controllable modulators comprise an array of controllable modulators and further wherein each said controllable modulator provides illumination for two of said second optical elements.

12. The projection system of claim 1, wherein said second optical element comprises a projector lens.

13. The projection system of claim 1, wherein illuminations from said second optical elements to the projection screen overlap to generate a final projected image with no imaging gaps.